SB 4.10.3

uttamas tv akṛtodvāho
 mṛgayāyāṁ balīyasā
hataḥ puṇya-janenādrau
 tan-mātāsya gatiṁ gatā
Synonyms: 
uttamaḥ — Uttama; tu — but; akṛta — without; udvāhaḥ — marriage; mṛgayāyām — on a hunting excursion; balīyasā — very powerful; hataḥ — was killed; puṇya-janena — by a Yakṣa; adrau — on the Himālaya Mountains; tat — his; mātā — mother (Suruci); asya — of her son; gatim — way; gatā — followed.
Translation: 
Dhruva Mahārāja’s younger brother Uttama, who was still unmarried, once went on a hunting excursion and was killed by a powerful Yakṣa in the Himālaya Mountains. Along with him, his mother, Suruci, also followed the path of her son [she died].